Flushing-valve.



S. W. LEWIS. FLUSHING VALVE. APPLIOATIOH FILED MAR.16,1908.

47,183. Patented Jan. 18, 1910.

guucwl oz 01bit county l ion"? n" l 7 it t PM W n i in army n ElltAllllnli-l ltii ill ilt l lt he Specification at Letters Patent.

Pntenteil Jon. tel, twill.

Application men Ill'JZm-ch 16, infill. Serial No. 421,485.

To all whom it; may concern:

Be it known that It, SAMTJEL W" Lewis, a citizen oi the United liitntesresiding at the borough of Brooklyn in the city of New of Kings noel.State of New 31 oclt, invented certain new anti useful limprovemente ini lushing-l/nlves of which the i ollowing is n specificntionnnd.descriptimn eference being lIlflClQ to the accompanying drawing byletters which indicate iclenticnl parts in all the views.

My invention relates to the class of flush ting velvee described in myprevious patents lilo 66?;384 elated l I ec. 4:, i900 nntl lilo 18th?and the objects M. LilttQCl Dec" 9. of my invention are fully set forthin the fol lowing description,

linthe drawing, Figure Li a sectional View showing one form of the valvein the not of closing, Fig. 2 is a siniilin View show ing' e nioditiecland improved construction 3 n sectional view on the vertical line y--yof Fig. 1., Fig. of; ie it sectional plain on the horizontal line TU-wof t 1g. 2 and Fig.

- 5 shows a detail ot'pzirt of Fig, l

in the di'nwing A is a discharge chamber oil passage provided with. thelateral recess a? which contains an operating arm K and. its hub llishalt or journal and retaining gnatclea l, the discharge chamber l. isalso provided exterlorly with lateral ei'ins A ppoit the operatingmechanism as hereinnitei' (lQSCIllJQtl.

The main valve hotly or casing B is pref embly connected to Pillt A by ascrew thread t it is provided with'un inlet connection l3 anti :1 countebored chamber or elashpot F2 SulTOUlldlD we main-valve sent and outlet(1 'lll'se cylinder D has one and open to the prebsune and its otherincl normally closed prefei'nbly by a removable screw cop (I, the not) Cis: provided with o removing nut. c, valve seat 0 and an opening 6 whichis closed by the screw cap N. is revoluble Within the casing B to re'ulate the volume of discharge or to shut it oil coinpletely as;hereinafter escribed A. piston t adopted. to freely reciprocate Withinthe cylinder D and haying the nsunl sli lit annular clearance betweenpi=ton and cy inder is macle integral with a main valve 1, which latteris about 1/32 of an inch les in rlianicter than the piston F and isptovicled with a valve washer j which is adopted to The cylinder D closeupon the seat and outlet of within the CGllIilPlbOlGd chamber 3).

An interior hollow arm I forms a by-pnss 7 controlled by the i egulntingscrew '1, the lay-pass leads from the side of the main valve below the{piston to the space which constitutes a pressure chamber in the closedencl ot' the cylinder between the piston F and cap C. The arm 1* isprovided with a shoulder to support a Washer J which is adopted toengage and held against the sent 0 whereby the on p lt can be removed Iand the ecrew T adjusted. Without having to shut oil the Water. Tolhcilitate a free flow to the by-pziss f l provide the annular groove :3below the piston, whereby the fiuid around the entire periphery of themainmlve can fintl free. tiow by the groove 23 to and through' theby;pnss f A pieton extension (l U is connected by screw tlneeil. orotherwise to the main valve it and is peovitlotl with a valve o" for arelief valve G gt The part 0 is adapted, when closing, to form a closepiston fit with in the outlet and Valve seat a the part 0 tapersslightly from the point 0 to its end at 0*, whereby when closing, theflow will be gradually reduced and an after-fill ptovidecl until Whollystopped by the pistonentcnsion 0 when it enters the outlet.

V is, o. stein having liniiterl' movement within the part 0 U and isprovided with a relief valve G and. Washei? g nclnptetl to clone uponthe seat 0", it is also provided with flutes 21* for In Figs. 1 and 5the stem f is enlentle to Form 'a loop v v, Zllfillllfiljiillfloperating nm'n 'K whereb the n'min-vnlve can be drawn to its seat. InFig". stem V? is shown without the loop and entirely free from the armIn 1 the cylinder D is threaded at 5", whereby it can be screwed in orout to regulate the volume of discharge or screwed against the end ofthevalve body )8 about the counterbore and outlet to shut oil the flow asindicnteil by clotted lines and as described and claimed in my enitlprevious patent, and when thns shut oil", by removing the cop C, andmoving the" o aerating nrrn'lll to the position shown by t e dottedline. the mainvalve, piston stem V and relief valve can be taken out,and Ft. )lacecl in the some manner.

In Figs. 2 on 4: the cylinder l) is pro videcl with an annular gland dwhich bears passage oi timid, and. stops o ribs and revolves upon asimilar gland 1) within the casing 13 and it is also provided withapDaching nut W'-. A cylindrical extension whichconstitutes a regulatingand shutoff valve is screwed at 05 onto the open end of the cylinder Dand is provided with a lug or guide it adapted to move between the guideI) I) within the casing B, the bearing gland I) being cut throughbetween the ribs (1 to allow the passage of the guide it into its placebetween the ribs when assembling the parts of the apparatus. Thus thecylindrical valve D is prevented by its guide h from turning, androtation of the cylinder 1) within the screw thread d causes thecylindrical valve ,Dto move in or out to regulate the volumeofdischar'ge or to shut off the don hy tiercing said cylindrical valveagainst itsseat' around the outlet as etiected by theconstruction shownin Fig. l, but wastes advantage that the position of the c tinder E isalways relatively the same with t eijother partseiltheapparatus. Whereasin the constructitgn shown in Fig. 1 the distance between. the valve Jand its seat 0 is variable, and theettici'ency of the arm K is alsoaffected.

In Fig. 3 m is one part of an operating journal or shaft having a corepreferably made square and provided with the gland m and an operatinghandle M of an suitable length and form to convenient y operate theapparatus. L is another part of the shaft or journal having an extensionL which latter is preferably square and adapted to pass through acorresponding square hole in the hub K of the operating arm K and toclosely engage the core of the art in a screw Z bear-in a ainst theland-4 7 D D m and engaging the square extension L retains the partstogether and the packing nuts RR prevent leak at the ends of the arms AA By unscrewing the packing nuts R and R also the retaining screw ltheseveral parts can be removed, at the same time the retaining guards awill sustain the operating arm and its hub K securely in place.

- In operation, movement of the handle or lever M rotates the journal mL which causes the operating arm K to open the relief valve G g'bymoving the stem V until its stops o engage the piston 0', when thepressure within the closed end of the cyliner D being relieved by thefree vent afforded through the flutes o the main-valve is easily movedto the end of its stroke, and when the handle is released, the reliefvalve G g instantly closes and the main valve will move toward its seatfast or slow according to the admission of fluid into the closed end ofthe cylinder through the bypass f or f.

The counterbore Z) about the valve seat a is substantially of the samediameter as the cylinder D and as the piston moves toward its seat, thetapered extension 0 enters the l l l outlet as shown in Fig". 2 andgradually reduces the flow until the part 0 enters as a. close fittingpiston within the outlet and valve seat. a which completely stops thedischarge, at the same time the main-valve F enters the counterbore b asshown in Fig. 1, when the space for admission of pressure between thewalls of the countcrbore and periphery of the main valve being greatcrthan any possible space for leakage or oscape of fluid under pessuroaround the closely fitting piston extension 0, the liuid pressure withinthe counterborc 1) between the main valve F and its seat a is maintainedto the instant of seating and serves as a cushion to preventwater-hammer as the valve noiselessly settles to its seat, which is ofgreat practical advantage because a valve that hammers soon destroys itsvalve seat and washer, strainsthe several parts and piping of thesystem, causes leaks and continual repairs; but with -this constructionthe apparatus operates without perceptible jar or concussion under thehighest pressure I have found obtainable for purposes of trial anddemonstration, and even with the regulating screw T entirely removed thevalve closes without hammer.

Both of my previous patents show a perforated tubular-extension belowthe main valve adapted to enter the outlet to gradually reduce the flowchiefly for purposes of after-till but there was space for passage offluid around the periphery of such extension and also through the holesor perforations shown. Whereas in my present construction, it isessential that the piston-extension O is made to fit piston tight withinthe outlet to completely stop the tlow when it enters, and the spacearound the main valve within the counterbore is the same as within thecylinder, about 1/32 of an inch, so that the pressure can be maintainedunder the main valve as it settles to its seat. And this is the greatdifference between my previous and present constructions.

Various modifications can be effected within the scope of the featuresherein described. For instance, the arm and by-pass F f and annulargroove 2i could be omitted, and a by-pass arranged in the wall of thecylinder D as at f in Fig. 2 and regulated by a controlling screw T andsuch regulating screw might be covered by a removable cover or capindicated by the dotted lines. The part. L and the corresponding coresin the hub K and journal in? might also be any other shape than squareto client the same result.

Having described my invention, I claim.

1. The combination of a valve casing provided with an inlet, an outlet,a valve seat and a counter-bored chamber surrounding said seat andoutlet, a valve reciprocable in said casing and so proportioned to saidsemen chiiniherc as to provide n slight clearance between the walls ofthe chamber and thevnlve in the closing movement of the valve,

and an extension on said valve adopted to --5 enter and completely closethe outlet in advancc of the seating of the valve.

2. 'l he combination of a valve casing pro vided with and ncounterloored chamber surrounding said seat and outlet, a votivereciprocable in said casing and so proportioned to said chamber as toprovides slight clearance loctween the Walls of the chamber and thevalve in the closing movement of the'vnlve, an on tension'on said valve,a part of said extension lacing tapered to first enter the outlet andgruduslly reduce the llovv and. part adapted to completely close theoutlet in advance of the seating oi the valve. to The combination of a:valve casing; provided with an inlet, an outlet, a valve seat and ncounterli-ored chamber surrounding" at and outlet, a. cylinder revoluhieid casing, e piston for said cylinder pr with n valve reciprocahle insold 1 c osing 4 so proportioned to said chamber us to ide aslightclearence between the "Vol f the chamber and the valve when cloeinend an extension on said valve so odnp to and completely close theoutlet in lldVllllQ, oi"- the sealing of the valve. The combination of avalve casing pro vided with an inlet, an outlet, a valve seat,

end counter-bored chamber surrounding snid seat end outlet, a revoluhlecylinder halving one end ivithin said casing and open toward the outlet,its other end Without the casing and closed by n removable head, apiston :tor said cylinder provided with a. valve which is reeiprocnhlcin said casing d so. proportioned to said chamber as to "do a slightclearance between the "walls o tuber and the valve in the closing -icincnt oi the valve, an extension on said valve adopted to enter andcompletely close the outlet in advance of the seating of the valve.

5. The combination oi a valve casing provided with an inlet, an outlet,a valve scat and n counterhormlchamber surrounding said sent and outlet,a rcvolublc cylinder having one end closcdloy a removal'ilc head, itsother end open toward the outlet, 21 piston for said cylinder providedwith a valve rcciprocalrle in said casing and so proportioned as toprovides slight clearance hetwecn the walls of the chamber and the valvein its closin; on said valve adapted to enter and completely close theoutlet in advance of, the seating of the valve, and a hy-oass to'admitpressure into the closed end of the cylinder when the valve is closing.

6. The combination of a valve casing pro vided with an, inlet, anoutlet, a valve seat an inlet, on outlet, n velveseat movement, onextension provided with sind a counterhored chamber surrounding saidseat and-outlet, cylinder 'revolvable vvithin the casing und l htiingone end open toward the outlet, 2 piston for said cylinder provided witha valvereciprocahle in said casing and so proportioned as to iovide aslight clearance betweenv the W211 s of the chamber and the valve in itsclosing move ment, on extension on said valve adopted to enter andcompletely close the outlet in ad- Vance of the seating of the-valve, alay-pass to admit, pressure into the closed end of the cylinder when thevalve is closin and a means for relieving the pressure a one the pistonto facilitate opening thevelve.

7. Ina flushing valve, the comhination of avsl e casing having on inlet,an outlet and c cvlinder With-one end ouch toward the I 4,. outlet, apiston for said c tinder provided with it valve adated to c ose theoutlet, 21 icy-puss throu h t e periphery of said piston and valve leaing to the closed space within the cylinder, :1 valve on the inner endof said bypass to engage a valve seat in the head of the cylinder andmeans of access through ,tion serving as a piston chamber in which saidpiston-valve 1S reoiprocahlc, the second section serving as a regulatingand shut-0d valve, said hrst section being rotottilol v mounted in thecasing and secnred'thereto against longitudinal movement. and saidsecond section losing non-rotatably mounted in the casing andlongitudinally adjustable on said first section whereby rotation of thefirst section Will move the wood section to or from its seat around sailoutlet to shut oil or vary the flow thercthrough.

l). The combination of n valve casing having an inlet and an outlet, 21piston-valve controlling said outlet, a tubular member composed of twotelescoping sections, one section serving as a piston chamber in whichsaid piston-valve is reciprocable, the second section srving as aregulating and shut-off valve, said first section being rotatablymounted in the casing and secured thereto against longitudinal movement,and said secoi'id section being noirrotatably, mounted in the casing andlongitudinally adjustable on said first section whereby rotation of thefirst section will move the second section to or from its sent aroundsaid, outlct'to shut oil or vary the flow thercthrough, and a headclosing the outer end of said first section and separable therefrom topermit the removal of the piston-valve.

10. The combination of a valve casing an inlet and an outlet, a istonvalve controlling said outlet, 21 hol ow cylinder in which saidpiston-valve is reciprocable, said hollow eylinderbeing revoluble insaid casing, one end of said cylinder being within said casing and opentoward the outlet, its other end outside the casing and closed by aremovable head, a cylindrical regulating and shut-0d valve incommunication with the open end of the cylinder, means to prevent saidshut-oil valve turning, whereby revolving the cylin der will force thecylindrical shut-oft valve against its seat around the outlet, to permitremoval of the cylinder head and piston.

11. The combination of a valve casing provided with an inlet, an outlet,a valve seat and a counterbored chamber surround ing said seat andoutlet, a hollow cylinder having one end within said casing and opentoward the outlet, its other end outside the casing and provided with aremovable head, said cylinder being revoluble within a packing nutsecured to said casing, a non revoluble cylindrical extension secured tothe openend of the cylinder, a piston and valve reciprocable in saidcylinder and casing and so proportioned to said chamber as to provide asli 'ht clearance between the walls of the chamber and the valve in itsclosing movement and an extension on said valve adapted to enter andcompletely close the outlet in advance of the seating of the valve.

12. The combination of a valve casing provided with an inlet, an outlet,a valve seat and a counterbored chamber surrounding said seat andoutlet, a hollow cylinder having one end outside the valve casing andclosed by a removable head, its other end open toward the outlet andrevoluble within the casing to shut off the water, a piston and valvereciprocable in said cylinder and valve casing and so proportioned as toprovide a slight clearance between the walls 0 the chamber and the valvein the closing movement of the valve, and an extension on said valveadapted to enter and completely close the outlet in advance of theseating of the valve.

13. The combination of a valve cssing provided with an inlet, and anoutlet, a valve seat and a counterbored chamber surrounding said seatand outlet, a hollow cylinder having one end open toward the outlet, itsother end closed by a removable head, said cylinder being revolublewithin said casing and provided with a non revoluble cylindricalextension on its open end, a piston and valve reciprocable in saidcylinder and easing and-so proportioned to sa d chamber as to provide aslight clearance between the walls of the chamber and the valve Whenclosing, an extension on said valve adapted to enter and completelyclose the outlet in advance of the seating of the valve and means torelieve the pressure above the valve to facilitate opening the valve.

cause 14. lhe combination of a valve easing provided with an inlet, anout-let, a valve seat and a counterbored chamber surrounding said seatand outlet, a hollow cylinder which is revoluble within said casing andits other end closed by a removable head, a cylindrical extension whichis not rcvoluble on the open end of said cylinder, a piston and valvereciprocable in said cylinder and casing and so proportioned to saidchamber as to provide a slight clearance between the walls of saidchamber and the valve in its closing movement, an extension on saidvalve the lower part of which is adapted to enter the outlet and reducethe flow and the up per part is adapted to completely close the and ameans of relieving the pressure above the valve to facilitate openingit.

15. The combination of a valve casing provided with an inlet, an outlet,a cylinder adjustably connected to said casing and having one end opentowardthe outlet, a piston and main valve reciprocable in the cylinderand casing to close the outlet, a relief valve for the main valve,a stemto open the valves, a lifting arm to operate the stem and provided witha hub having a non circular hole through it, retaining guards in whichsaid hub is adapted to turn, an operating journal composed of two parts,one part having one of its ends cylindrical to form a bearing andcovered by a packing nut, its other end of a shape to fit and passthrough the non circular hole in the hub and into a similar hole in theother part of the journal'said other part beingcylindrical to form abearing and beinq provided with a packing nut throuch which its outerend projects, a screw in said outer end to bind the two parts of thejournal together and means to operate the journal and arm to open thevalves.

16. In a flushing valve of the character described, r provided with aninlet and a counter bored outlet, the combination of a cylinder opentoward the outlet, a piston and main valve operative within the cylinderto close the outlet, a relief valve for the main valve, a stem tooperate both the relief and main valves and provided with a loop at itslower end, an operating arm to engage the valve stem within the loo ajournal adapted to operate the arm on an exterior means to operate thejournal, and guards to retain or support the arm in position when bothjournal and valve stem are removed, substantially as described.

.17. In a flushing, valve of the character described, the combination ofa valve body provided with inlet and outlet ports, a cylinderadjust-ably connected to the valve body and adapted to close about theoutlet. a piston and main valve operative within the cyll inder andadapted to seat upon the outlet,

having one end open toward the outlet and I outlet in advance of theseating of the valve,

a relief valve for the main valve, a stem con- 1 nected to the reliefvalve to open both valves and provided with a loop at its rower end, aremovable .and reversible journal provided with aift exterior handle, anoperating arm carried by the journal and. enga 'ing the stem within theloop to open the valves, and retnininglguards to support and retain theoperating arm in POSIUOD when the journal and valve stem are bothremoved. 18. In a flhshing valve-such as described, Qthe' combination ofa valve body provided vwith an inlet and outlet and a cylinderadjustably connected to said body, and having e journal is removed.

one "end closed and itsv other end 0 en toward the outlet, :1 pistonvalve wit iii] the cylinder to close the outlet, a relief valve for thepiston valve, a stem to operate both valves, an operating arm to engagethe stem, a jmrnal operably connected with said arm an a hu on the armand retaining guards to keep the hub and arm in SAMUEL W. LEWIS.Witnesses: Y

JAMES ARMSTRONG, CHARLES A. ARMSTRONG.

rovided with exterior'operating means, I

place when the.

